Home / 19,132,452.80-28,698,679.20-11,957,999.30

Finding the Fourth Proportional to 19,132,452.80, 28,698,679.20 and 11,957,999.30

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Solution

The fourth proportional to 19,132,452.80, 28,698,679.20 and 11,957,999.30 is: 17,936,998.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,132,452.80 : 28,698,679.20 = 11,957,999.30 : x
  2. Step 2: Convert to fraction form
    19,132,452.80/28,698,679.20 = 11,957,999.30/x
  3. Step 3: Cross multiply
    19,132,452.80x = 28,698,679.20 × 11,957,999.30
  4. Step 4: Simplify right side
    19,132,452.80x = 343,178,785,784,524.56
  5. Step 5: Solve for x
    x = 343,178,785,784,524.56/19,132,452.80
  6. Step 6: Final answer
    x = 17,936,998.95

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.